Air-pump for automobiles.



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AIR PUMP FOR AUTOMOBILES. APPLIGATION FILED DEG.18,1913

1,100,056,v 'n Patented Jun 16,19'14.

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y. Air-Pumpsjfor Automobiles, oi which lToetlllfwhznrit may concern; 1Be yit known lthat 1,' CHARLES' N. GoLs'iAi'a.` vva citizen of theUnited States, residing at Atlantic,j'county of Norfolk, State ofMassachusetts,l have invented an lmprovement following description,- inconnection h the' accompanying drawlng7 1s a' speciitionllike characterson 4the drawing rep- 'renting like parts.

g-This invention relatesto anair .pump-for automobiles to be used Jfor.pumping up they i ypneumatic tires and particularly to air pumps forsuch automobiles as :use la iancooled engine. y g.

The objects of the invention are to provide a novel construction in'which the pump is sustained by and associated with the fait' supportingbracket thereby' making a very simple construction which involves feweX- tra parts, and also to provide a construction which can be readilyadapted to any auto- Ymobile having a fan-cooled engine 'withoutnecessitating any change in the construction` of the parts other thanthat of the fansupporting yother novel features, all' as will be morefully hereinafter described and then pointed' out in the appendedclaims.

' and pump cylinder. 1in outline a fan-cooled Referring. to the drawingswherein I have illustrated a selected embodiment of my invention, Figure1 Ais a-more or lessdiagrammatic viewy lshowing the 'front part of afan-cooled automobile engine and part of the chassis and running gear ofan auto-v imcloil'e. Fig. 2 is a section through the pump'andfan-supporting` bracket on substantially the line .fe-, Fig.'3; Fig. 3is a section on the line yv/,wEig 2; Fig. 4 is a view of the combinedfan-supporting .bracket I have shown at internal combustion enginemounted on the chassis 2 of an automobile',and at 3 I have `shown theengine-cooling f an. Vhilel my invention-is applicable to any fan-cooledengine, I have chosen to show it herein as embodied ina constructionwherein the' fan 3 is mounted on a fan-supporting shaft 4 that iscarried by a bracket 5 secured to the engine, the fanhaving rigidtherewith adriving pulley 6 which is operated by a belt 7 from 'a pulley8 on the engine shaft 9. This particular construction of air-cooled nspeci'aatioa tf,ifetterfs rateat.

Fis Ivery commonly bracket, and further to .provide saciiusnmrsfrateta'aaaeipcgieia.

Apaucation mea December 1a, 1913. serial ivo. acatar).l

lsed and for-ins no part of ymy'ppresentinvention.

.In embodying myinventionin a device of this n`ature,. I associate anair-pump with the fan-supporting' bracket vand.. provide for 'operatingthe pump from the fan-driving of my invention the' pumpcylinder is madeintegral with the bracket 5 and the pump piston is operated froma cammember whichv is adapted to be clutched to or unclutched from thedriving pulley 6.

The fan-supporting bracket?) is shown as mounted on a stud,.l0 securedtothe engine and the `fansupportinglshaft 4f is secured in the portionll ofthe bracket. 'In the present embodiment of my invention thefansupporting sha-ft is non-rotary and is in the the heat ofcompression. '17 is a pump-piston of any suitable construction whichopprovided at its end with a ypin or projection l8fwhich operates'in acam groove 19 formed in a piston-driving member 20 that is loosely inmember 20 isadapted to be clutched to the fan pulley 6, andorthis'purpose said nally of the shaftV 4 and is provided with Vclutchpins or projections 21 thatare adapted to enter apertures or recesses 22formed in' the end of the fan pulley.

A spring 23 is placed between driving member 20 and the fan-pulley,7which spring encircles the sha-ft l and tends normally to keep shown inFig. 3. The piston-driving meinpulley '6 by .means of an `actuatingmember mechanism. In the preferredy embodiment crates inthe cylinderl.This piston is `member20 is arranged to slide longitudith piston'- theclutch disengaged,1 asv ber 20 is moved longitudinally of the sliart.and into operative engagement lwith the form of va stud or pin screwedinto the ing 'ribs 16 which will assist in dissipating A- mo inted' onthe shaft 4.. This piston-drivids 24 in the form of a lever pivotedtothe pump cylinder at 25 and having a forked end 26 4that embraces theshaft 4 and is adapted to engage the opposite side of the member 20 fromthat acted upon by the spring 23. This actuating member 24 will have asuitable 1ink,or connection 27 secured to the end thereof which leads toa convenient point from which the chauffeur may operate it.

Thel pump cylinder is shown as having an inlet port 28 and anoutlet port29 controlled by a check valve 30, and the outlet port of said pumpcommunicates with a flexible tube 31 which may be connected to the valveof any of the pneumatic tires.

Under normal conditions when it is not necessary to use the pump theparts are in the position shown in Fi 3, in which position'the fan willrun reely on its shaft-y Without aecting the pump. Whenever the pump isto be operated the actuating member`24 is operated through theconnection 27 thereby to shift the piston-driving member 20 to the rightFig. 3 and into position to cause it to be clutched to the fan pulley 6,and as soon as this occurs the rotation of the 'fan will be communicatedto the member 20 and thus the pump piston will be operated. The lengthof the pin 18.is such that it al- Ways has operative engagement in thecam groove 19 even when the clutch is disen- 1 gaged, and the groove 19is deep enough to permit of the necessary movement of the- `member 20 tocause it to. be clutched to the vfan pulley 6.

It will be observed that my invention adds v -very little to themechanism now already in use in a fan-cooled engine, it being merelynecessary to provide a'bracket having the pump cylinder sustainedthereby. and to' place the piston-driving member 2O on the fan shaft.The fan-supporting bracket 5 is readily removed from the engine and anyyinternal combustion engine can be equipped with my invention by merelyremoving the fan-supporting bracket with which the engine was originallyequipped and substituting for it a new bracket having my pump associatedtherewith. This can be done at a very small expense and with a small-eXpendiv ture of labor.

As stated above, my invention is-applicable lto any internal combustionengine whether of the particular type herein shown or not.. I,therefore, do not Wish to be limited to the constructional featuresherein illustrated.

Having fully described my what I claim as new and desire to secure byLetters Patent is:

l. The combination Awith an internal combustion engine, of afan-supporting bracket sustained thereby, an engine-cooling fansupported by said bracket, engine-operatedfan-driving mechanism, saidbracket having a pump cylinder formed as an integral part thereof, apump piston operating in said cylinder, and means to operate the pistonfrom the fan-driving mechanism.

2. The combination with an internal combustion engine, of afan-supporting bracket sustained thereby, an engine-cooling fanysupported by said bracket, engine-operated fan-driving mechanism, apump 'aylinder sustained by the bracket, a pump piston operating in thecylinder, and means to actuate lthe piston from the fan-drivingmechanism.

3. The combination with an internal combustion engine, of afan-supporting bracket sustained thereby. an engine-cooling fansupported by said bracket. engine-operated fan-driving mechanism, saidbracket having a ump cylinder formed as an integral part tiereof, a pumppiston operating iu said cylinder, a piston-actuating member sustainedby the bracket, and meansto couple said member to the fan.

4. In asdcvice of the class described, the combination with afansupporting bracket, of a fan shaft sustained thereby.y a fanrotatably mounted on said shaft, a driving pulley for operating the fan,said bracket having formed as an integral parl thercof a pump cylinder,a pump piston operating 1n said cylinder, apiston-driving member looselymounted on said shaft, and means to couple said piston-driving member tosaid pulley.

In testimony `whereof I have signed my name to this s}; e'cilication. inthe presence of two lsubscribing witnesses.

CHARLES l\`. COLSTD.

Witnesses LoUIs C. SMITH, THOMAS J. DRUMMOND.

invention,

